XSL trouble with generating XHTML from TOC

[Frans Englich <frans.englich@telia.com>]

Hello all,

I have a file called book.xml which via XPointers includes "sect1"s into its
book element. Apart from being a book, the sect1s are used as independent 
articles on a website where each chapter is a category for the 
articles(sect1s). 

I am having trouble generating the website navigation for these articles. I 
want it to be like the "Audio & Video" category and similar, found on 
www.download.com, but where the entries are aligned vertically below. 

My book have 5 chapters, but when generating a table with one row(tr) and five 
cells(td) each containing a table with a tr encapsulating a td for each sect1 
and the chapter's title(as on download.com but vertical), it gets too wide 
for 1024x768. In other words, I need to do a break where the first "line" 
contains 3 categories, and the one below 2.

I have trouble getting this right with my XSL(attached) -- when the for-each 
loop have iterated over 3 chapters, it needs to "pop out" and start a new 
row. With an ordinary programming language that would have been easy, but I 
can't get the template thinking right.

Another problem, probably caused by my incapable HTML skills, is the 
categories gets formatted unevenly because they contains different amounts of 
sect1. I tried to solve this by putting 'valign="top"' in the table but that 
didn't help; still those containing less entries are centered and not on the 
same "rows". One method is to somehow find out what the maximum number of 
sect1s that exists in any chapter, and then insert(by looping?) empty cells 
in each category so all categories have the same amount of cells. Or control 
the formatting somehow. Any ideas?

Thanks in advance,


			Frans